Adjusting lash - solid lifters

joestang

joestang

Club Member
I have a TSLR cam in my 347 and I have not yet set the lash after the initial build. After a open track day last year they are a little noisy, so its time to adjust them.

I havent done them before, so any tips? I have a decent metal gap kit, but is something better? Also my cam card says to set them "warm" but how the hell do you do that? By the time you pop off the covers and start adjusting it gets cooled down pretty quickly.

Just looking for some advice as to how difficult it is, and if a novice should attempt it.
 
I work at Jakes Automotive in Sterling Heights and deal with alot of high performance and race cars. Wen i lash valves, i let the car run for about 20 min just to get some heat in to it then with a nice set of feeler gauges adjust the rockes till the feeler will slid in between the rocker tip and the valve snuggly. Thats how i do it on my car and on all my customers cars
 
briansbadlx said:
if it is you first time lashing the valves it is best to have someone show you how
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THis! It's not hard at all, but should have someone help you the first time around. You need a decent set of feeler gauges, preferribly the ones with an angled end. You set the exhaust valve just as the intake closes, and the intake just as the exhaust valve starts to open. THis ensures you're on the back side of the lobe everytime. Do them cylinder by cylinder.
 
Billydroveit said:
THis! It's not hard at all, but should have someone help you the first time around. You need a decent set of feeler gauges, preferribly the ones with an angled end. You set the exhaust valve just as the intake closes, and the intake just as the exhaust valve starts to open. THis ensures you're on the back side of the lobe everytime. Do them cylinder by cylinder.
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x2, but i like to adjust them by going through the firing order, do all the intakes, then all exhaust. Just less times you have to rotate engine.
 
82bird said:
x2, but i like to adjust them by going through the firing order, do all the intakes, then all exhaust. Just less times you have to rotate engine.
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On bigger and different profile cams you can be too close to the starting of the exhaust ramp and can cause some issues. It's just a safer bet to do it the other way. But for alot of cams, firing order works. I'm just in the habbit of doing it this way.
 
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